<select name="sho_kill" <?php echo $estilo;?>>

    <option value="1" <?php if($linha_hit['sho_kill'] == '1') { echo "selected"; } ?>>Yes</option>
    <option value="2" <?php if($linha_hit['sho_kill'] == '2') { echo "selected"; } ?>>No (trashed)</option>
    <option value="3" <?php if($linha_hit['sho_kill'] == '3') { echo "selected"; } ?>>Unable</option>

</select>